Protective cap for a beverage bottle



FIG. 1 is a perspective view of a protective cap for a beverage bottle showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof, the left side being a mirror image of the right side as shown;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a protective cap for a beverage bottle, as shown. 